Arkansas Rep. Tom Cotton will raise money for his Senate campaign in Washington later this month with a gang of longtime GOP power brokers, including former Solicitor General Ted Olson, Republican Governors Association finance chair Fred Malek and former National Republican Congressional Committee Chairman Tom Davis.

According to an invitation obtained by POLITICO, Cotton will be the beneficiary of an Oct. 23 event at the offices of the D.C. law firm Gibson Dunn. Attendees are asked to give at least $500 per individual or $1,000 per political action committee, with event co-hosts kicking in $2,500 apiece.

The lineup of hosts includes Virginia GOP fundraiser Bobbie Kilberg, who heads the Northern Virginia Technology Council; former Virginia state Sen. Jeannemarie Davis and several other members of the Beltway GOP legal elite.

The fundraiser is scheduled just under a week after the Oct. 17 deadline the Treasury Department has set for Congress to raise the U.S. debt ceiling. Cotton has been a staunchly conservative voice in past debt ceiling debates and the current shutdown standoff, arguing that Republicans should stand their ground to force concessions from Democrats.

Cotton’s challenge to Democratic Sen. Mark Pryor has heated up amid the shutdown; the Democrat has launched ads calling Cotton’s position “reckless” while Cotton has put up his own ads blasting Pryor’s support for the Affordable Care Act.